51042415 has 16 divisors (see below), whose sum is σ = 65022912. Its totient is φ = 38331904.

The previous prime is 51042373. The next prime is 51042457. The reversal of 51042415 is 51424015.

It is an interprime number because it is at equal distance from previous prime (51042373) and next prime (51042457).

It is a cyclic number.

It is not a de Polignac number, because 51042415 - 2²¹ = 48945263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57102 + ... + 57988.

It is an arithmetic number, because the mean of its divisors is an integer number (4063932).

Almost surely, 2^51042415 is an apocalyptic number.

51042415 is a deficient number, since it is larger than the sum of its proper divisors (13980497).

51042415 is a wasteful number, since it uses less digits than its factorization.

51042415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 51042415 is about 7144.3974553492. The cubic root of 51042415 is about 370.9457543539.

The spelling of 51042415 in words is "fifty-one million, forty-two thousand, four hundred fifteen".